uploadPreKeys() waited for a concurrent upload but then proceeded to upload
again. With top-up logic and count=0, both handleEncryptNotification and
uploadPreKeysToServerIfRequired fire simultaneously, both see count=0, first
wins and uploads 800, second waits then uploads another 800 → 1600 prekeys.
Fix: return immediately after awaiting the concurrent upload — it already
replenished the pool.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- history.ts: move CDN DELETE from downloadHistory() to
downloadAndProcessHistorySyncNotification(), after processHistoryMessage()
succeeds — prevents permanent history loss if processing throws post-download
- history.ts: fix fetch spread order: { ...options, method: 'DELETE' } so
options.method cannot shadow the intended DELETE verb
- socket.ts: add early return after void end() in onKeepAliveTick to prevent
scheduleNextKeepAlive() from leaking a timer while connection is closing
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
1. USyncQuery: extract raw_id attr from node attrs into rawId field; implement
side_list parsing (was TODO/commented) reusing shared parseNodeList helper
2. getUSyncDevices: add 4th LID→PN source via raw_id pairing from device-list
WA Business sends zero phoneNumberToLidMappings in HistorySync — raw_id is
the only way to resolve LID↔PN for those accounts during message send
3. MIN_PREKEY_COUNT: 5 → 25 (WA Business maintains ~812; 5 was too low a buffer
before triggering replenishment upload)
4. startKeepAliveRequest: replace fixed setInterval with recursive setTimeout
+ ±15% jitter, matching WA Desktop's ~25-30s variable heartbeat pattern;
clearInterval → clearTimeout for the handle
5. downloadHistory: fire-and-forget DELETE to CDN after successful download,
mirroring WA Desktop behaviour (server-side one-time file cleanup)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix: histsync LID improvements — raw_id mapping, prekeys, keepalive jitter, CDN DELETE
* fix: prekey pool strategy — 800 initial, top-up to 800 when below 200
- INITIAL_PREKEY_COUNT: 812 → 800 (rounded, matches WA Business ~812 from CDP capture)
- MIN_PREKEY_COUNT: 25 → 200 (replenishment trigger threshold)
- uploadPreKeysToServerIfRequired: top-up to INITIAL_PREKEY_COUNT instead of
uploading a flat MIN_PREKEY_COUNT — restores full 800-key pool on each replenish
- handleEncryptNotification: same top-up logic (INITIAL_PREKEY_COUNT - count)
so server notification path also restores to 800, not just adds 200
uploadPreKeys(5) in error recovery path intentionally left unchanged.
Two bugs fixed compared to prior implementation:
1. history.ts — normalize userJid LID→PN
pastParticipants[].userJid may arrive as a LID identifier (e.g. "46802258641027@lid").
The consumer expects a phone number. After building the lidPnMap from conversations
and phoneNumberToLidMappings, each userJid is resolved to its PN equivalent.
If the mapping is not available the original value is preserved (no data loss).
2. event-buffer.ts — deduplicate by groupJid + userJid across chunks
Multiple HistorySync chunks can contain the same group. The previous approach
concatenated blindly, producing duplicate entries. Now a keyed map
{ [groupJid]: IPastParticipant[] } is used so each group appears once and
each participant within a group appears at most once.
Types updated (Events.ts):
- messaging-history.set event includes pastParticipants?: IPastParticipants[]
- BufferedEventData.historySets.pastParticipants typed as keyed map
- Add interactive message detection helpers (getButtonType, isCarouselMessage, etc.)
- Inject biz node with interactive/native_flow for non-carousel interactive messages
- Inject biz + quality_control with decision_id for carousel messages
- Skip bot node for native_flow/carousel/catalog (breaks Web rendering)
- Force device-identity inclusion for carousel messages
- Append deferred biz/bot/quality_control nodes after device-identity and tctoken
- Store tctoken under both LID and PN for reliable lookup
Two fixes:
1. Stanza type="media" for carousel messages — WhatsApp Web needs this
to render carousel in real-time. Without it, only shows header until
page refresh (F5).
2. Fix jimp detection: typeof Jimp === 'function' (not just 'object')
so jpegThumbnail is generated for card images.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
7 corrections based on reverse-engineering of WhatsApp Business Android:
1. resolveCanonicalJid: PN→LID resolution for transaction lock keys (prevent race conditions)
2. Retain PN session during LID migration (avoid No Session errors)
3. Delayed PreKey deletion with 5-min grace period (prevent Invalid PreKey ID races)
4. Surgical session cleanup: only delete the specific corrupted device, not all devices
5. Identity dual storage: save identity key in both LID and PN addresses
6. MAC error cooldown reduced 10s→1s (faster recovery, aligned with WABA)
7. Allow session recreation on first retry (retryCount >= 1 instead of > 1)
* fix: remove unused jidDecode import from decode-wa-message.ts
* fix: add try/catch to delayed PreKey deletion to prevent unhandled rejection
The setTimeout async callback in removePreKey could cause unhandled promise
rejection if the keystore was destroyed (connection closed) before the
5-min grace period expired.
Renato Alcara